When choosing a charger, you need to build on several characteristics at once. The main thing to pay attention to is the type of power usb c adapter or b type plug and connectors for connecting to charging and a smartphone. If everything is chosen correctly in this regard, the smartphone will charge without problems.
All other characteristics are related to the reliability of the device, as well as the speed of energy recovery. As a rule, it is this aspect that people most often pay attention to. Therefore, we propose right now to understand all the main characteristics of charging.
This is one of the main characteristics that you need to pay attention to when choosing a charger. Measured in amperes. On the packaging with the charger or on its case, you can always see the markings 1A, 2A, 3A, and so on. But to look only at this characteristic is not correct. It is also necessary to take into account such a parameter as voltage. It is measured in Volts.
From a conventional electrical outlet, the charger receives 220 volts and 1 ampere. Then it converts it by lowering the voltage, and the current strength either remains the same at 1 Ampere or increases significantly. On the packaging of the charger or on its case, the voltage is always paired with the current. For example, 9 Volts and 2 Amps or 5 Volts and 1 Amps, and so on.
This is done because the final charging speed cannot be determined separately from these characteristics. To understand the actual power, you need to multiply one indicator by another. Power is measured in Watts.
Fast charge support
As it was before
Fast forward ten years in our minds: the first iPhones, various Windows Mobile communicators, and the first Android smartphones are being sold on the market. All of them had batteries with a capacity of 1,200 - 1,500 mAh and charging for 1 Ampere and 5 Volts, which allowed the battery to be fully charged in one and a half to two hours.
The devices of that time, for the most part, at least quietly survived until the evening or even lived for more than a day, rarely anyone complained about the long charging time. Battery capacities began to grow, battery life began to fall, and charges remained the same: all this eventually led to the fact that you often had to spend hours near the outlet, just to keep the smartphone alive until the evening.
So there were several standards for fast charging.
How fast charging works?
Conventional chargers or a USB port are capable of supplying a device with a voltage of 5 volts with a current of up to 1 ampere. Under such conditions, modern smartphones and tablets charge for a very long time: from several hours, or all night. Fast charging is characterized by increased current and voltage. In different standards, these values \u200b\u200bcan reach up to 20 Volts and 5 Amps, which ultimately gives 100 watts of power.
For fast charging, you need both standard support from the gadget and an appropriate charger. If there is a mismatch, fast charging simply will not occur, charging the gadget in the usual slow way. Fast charger fully discharged battery (or close to such a state), the charger fills with high voltage and current. Then the voltage and current are reduced so as not to damage the battery. That is why the first 50% is charged in half an hour, and then the charge rate decreases.
Varieties of fast chargers
At the moment, smartphone manufacturers are actively introducing fast-charging technologies. Agree, it is very convenient when you do not have to spend a lot of time charging. Imagine that you woke up early in the morning and forgot to charge your smartphone at night. We connected the gadget to a fast charger, and while we took a shower and had breakfast, your smartphone is already half charged. There are several types of fast chargers. The most popular of them are Quick Charge, AFC, and Power Delivery. What type of charging is suitable for your smartphone can always be clarified on the manufacturer's website or by some experts.